First Mac, a few questions

I just got my Macbook today! The setup was unbelievably easy, but I have a few questions with regards to working apps.

-Is there a way to organize documents? I tried to put some of the word files I imported from my PC into a folder, but when I created a new folder I couldn't find a way to move documents into it.

-What are comments on Keynote? I want to download my professors' presentations and type notes on them. Is that the best way to do it?

-When you create an album in iPhoto, how do you select multiple pictures to be added at the same time? Also, is there a way to add pics from Photobooth to iPhoto more efficiently than one at a time?

That's all I have right now. All in all, I was surprised at how hassle free installation was and how seamlessly my files transfered over. I think that once I get the hang of things I'll absolutely adore my Mac!

unfortunately at the moment there isnt an automated way for photobooth photos to be automatically transferred into iphoto (without the use of Folder Actions, but thats probably too complicated for you atm)... so the quickest method i can reccommend is to go to you pictures folder, select the photobooth folder within it and drag that into iphoto. this will add all the photos at once, but unfortunately you will have to keep updating it as you take more photos with your iSight camera.